Is CPD p.Arg246His (c.737G>A) pathogenic?

CPD p.Arg246His (c.737G>A) is classified Uncertain significance in CPD (ClinVar, Single submitter, 1 submitter; last evaluated 2024-10-19). AlphaMissense: likely benign (0.101); Very rare (popmax 0.00334%, nfe).

How common is CPD p.Arg246His (c.737G>A) in the general population?

CPD p.Arg246His (c.737G>A) is very rare (popmax 0.00334%, nfe) (gnomAD).

What do computational predictors say about CPD p.Arg246His (c.737G>A)?

AlphaMissense predicts likely benign (score 0.101) — an in-silico prediction, not a clinical call.

CPD p.Arg246His

c.737G>A · VCV3496328

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.101 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00334%, nfe)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.101	likely benign
REVEL	0.102	moderately benign-leaning
SaProt	LLR -7.40	tolerated
⇒ AlphaMissense, REVEL and SaProt all call this tolerated.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 8.5	GERP 1.2, phastCons 1
Overall
CADD	25.9	PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean tolerated — a triage signal, not a reclassification

AlphaMissense carries the ACMG weight for missense; REVEL and SaProt are independent agreement signals.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00334% European (non-Finnish) · 38/1,139,148 alleles

Filtering AF 0.00248% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00217%

Overall 0.00261% 39/1,491,788 alleles · very rare

Ancestry group	Frequency	1 in
European (non-Finnish)grpmax	0.00334%	29,978
Remaining individualsnot grpmax-eligible	0.00175%	57,236

Rarity supports pathogenicity (ACMG PM2); frequency above a disease-specific BA1/BS1 threshold argues against it. A variant frequent in one ancestry group can be near-absent in others, so a single global figure can mislead.

Variant & gene context

Gene: CPD
Protein: p.Arg246His
Coding: c.737G>A
MANE Select: NM_004839 · reported on NM_001304
Type: single nucleotide variant
Location: chr17:30379717 (GRCh38)
Structure: AlphaFold pLDDT 89.20

Full CPD gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

HOMER2 p.Arg208Cys Uncertain significance ★★ ⚠ same type
HOMER2 p.Arg213Trp Uncertain significance ★★ ⚠ same type
HOMER2 p.Arg215His Uncertain significance ★★ ⚠ same type
HOMER2 p.Arg309Cys Uncertain significance ★★ ⚠ same type
HOMER2 p.Arg334Gln Uncertain significance ★★ ⚠ same type
HOMER2 p.Asn235Lys Uncertain significance ★★ ⚠ same type
HOMER2 p.Glu255Asp Uncertain significance ★★ ⚠ same type
HOMER2 p.Glu274Lys Uncertain significance ★★ ⚠ same type

Built on 18 open, versioned datasets — ClinVar, gnomAD, AlphaMissense, REVEL, ClinGen & more — plus Sugi Variant's own cross-source analysis. Source data 2026-01–2026-10, ClinVar 2026-10. Full sources & versions →

Cite Sugi Variant

Gür T. Sugi Variant: A Deterministic Per-Variant Germline Reference from a Knowledge Graph for Humans and AI Agents. 2026. doi:10.5281/zenodo.21509445. This variant: https://sugi.bio/variant/cpd-p-arg246his (accessed [today's date]).

Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown